I think it's perfectly reasonable to allow a certain amount of technical debt to accrue, especially when prototyping new features, and treat it as a priority to

I think it's perfectly reasonable to allow a certain amount of technical debt to accrue, especially when prototyping new features, and treat it as a priority to clear this debt by the time said features become a dependency to other parts of the project. The point of code quality is to enable the company to change its mind or add new features. Over-perfectionism that gets in the way of this is going too far. At one company I worked for, the policy was not 100% strict DRY. Instead, we waited for 3 uses of the same idiom before we put it in the library. This prevented the collection of too many trivial methods, while still giving the benefits of DRY.